Electric starter for internal-combustion engines



J. R. MILLWARD.

ELECTRIC STARTER FOR INTERNAL COMBUSTION ENGINES APPLICATION FILED 050.24. I917.

1,341,659. PatntedJunel, 192,0

WI'TNE'SSE I NVENTO R 689m W ing at 36 No 5h 6th street so tion,

iorce thereon.

applied to-iike parts in the various Jenn Bosses or sneinsnnme STA witness,

@riginal sppliostion flies Horas-312M To; all whom may 009108? Be it known L J city of Newark SZese of New so i A.., have invented Cfifiihiii new Improvement Else-brie Sn. ternel-Cornhnstion Engines foliowing is s 1 3111 oiesr, and

This inveniion reieiaes hog devices for 5mm; eon-1hr anci. controlling means perticuisr reference in the so whereby the motor employed. hermetically into and out or with the engine to be eta Iii/Gd.

My improveddeviee is sense a for starting automobile engines Jlfififil impol'izent feature shereof consists in en rangement whereby the aforesaid means for engaging she motor. with the controls the current passing through the 'ior whereby the full Working current and she engagement. of the connectoris made pendent on the proper eifigegement oi the connector and the driving of the engine i7: iLhe motor. The operation issueh that the full Working curifnt Wili not pass through the motor until the gears are in proper nesh eine-ins and upon the starting of the en 'nie rho ino- 1*! tor circuit will be opened and the connector disengaged. The ifltilfil' function is arranged to be effected instnntiy on the so celeration of the engine by its own power thus to effect the discngagen'ient of she niotor before "the engine can eigert a ihifsig: My improved arrangement is thus'posiive in its operation e and disengage the motor 3, His a when disengaged is eniii'eiyfree on; connection with moving pen-is -The foregoing and oshev of nay invention are shown in the nceompanying; drawings wherein are shown iiPSiYHi iu oinbodiincnts of-my invention and in 'whici': the reference chin-actors of this descrijii The drawing shows (iingn'ium'nut preferredembodiment of my inven In the figure M indicates the motor consisting of? an airman on a shaft 2 enci having; the V commutator-.5 and. 'the eonimug mil Tum:

'nitiaiiy 'So oiose the eiri-oniaots 21 Quit throne; in a iesis Upon t end of the pinion and suitably inso. ai ed therefroni is an en nuisr switch member if the form of cop per ring which is schipseeh when the pin- 2)..4 ion is in fni QKU-ZIOGHIQHC with the ."Q'ili J i a n. o 12 to engage rhe orosnesM, 3% and oiose the circuitaherethrough to receive the full 'Woriting current from "she battery to turn ihe gins. The brushes are shown sup ported by and iDSHidi/Qd from the motor imnie f and connected in series wish the motor through the rings 32 to n conmct 23 iikewise engaged by the switch arm S, is o he noier' 3 the armature m is ne i an axially de-eenis journaled so as 10 need iroin 10153 field un- :1 ('()ii spring/ L0, ihe hes eoninmmi'or being sufiicienti-y e oi poi-mi? of this movement and pos in P z 'nmture. Upon establishing ihe Quit through the resistr by operai; fihe switch S the or manure will he shif the i into its held against 4 I I 1g e0 aherehy carry ,x N the opera mg collar i8 and. the pinion 8, the heino hroiight in per- .oiill or re'bnrchng engage em. with the fly? in HE i'ng motor; a battery;

wheel gear 12. Thereafter, on rotation of the armature, the pinion positively will be shifted into ,full engagement with the gear 12. When the engine begins to run under its own power, it will automatically throw out the pinion8, and the driving circuit will be completely broken owing to the shifting of the rings 32; the coil spring 40 will then displace the armature to complete the disengaging of the pinion.

It is to be noted that when the switch S is in the position shown in the drawings, it bridges contacts '21, 22 and 23. flows from battery through -contaet 22, switch S, contact 21, resistance 0*, field coil 4:, brushes 7, commutator 6, brush 7] back to battery. When the annular switch member 32 comes into contact with the brushes 33, 34, the resistance r is short-circuited, so that the full power of the motor and battery is applied to start the engine.

This application is a division. of my United States application, Serial No. 801,850, filed November 19, 1913.

lVhat I claim is:

1. In combination with an engine, a toothed member connected therewith a startmeans for. connecting said battery with said motor; a helix driven by said motor; a pinion movably mounted on and rotatable with said helix; said starttered armature ing motor including means for bringing said pinion in engagement with said toothed member to cause a relative movement between said pinion and said helix, and engagement of said pinion with said toothed member.

2. In combination with an engine, a starting device therefor comprising a motor; a battery; circuit connections between said battery and said motor; a normally de-cenfor said motor; a helix connected with said armature; a pinion movably mounted on said helix; a toothed wheel connected with the engine; and means for connecting said motor with said battery so that said motor may cause engagement of said pinion with said toothed member to start the engine.

. 3. In combination with an engine, a start- BO ihg device therefor comprising a motor; a

battery; a helix connected with the motor; a pinion movably mounted on the'helix; a

and said starting motor inchiding means for imparting bodily movement to the helix and pinion: and causing relative movement between the pinion and the helix prior to the enmeshment of said pinion with said toothed wheel.

A. In a starting mechanism, the combina- Current' toothed wheel connected with the engine;

tion with a pair of coacting gear wheels, and a screw-threaded shaft for supporting one of said gear wheels, of means for simultaneously rotating said shaft and shifting it longitudinally.

. 5. In a starting mechanism, the combination with a pair of eoacting gear wheels, and a screw-threaded shaft for supporting one of saidgear wheels, of electro-responsive means for simultaneously rotating said shaft and shifting it longitudinally.

(3. In a starting mechanism, the combination with a pair of enacting gear wheels, and a screw-threaded shaft for supporting one of said gear wheels, of a motor for simultaneously rotating said shaft and shifting it longitudinally.

7. In a starting mechanism, the col'nbination with a pair of coacting gear wheels, of means for shifting one of said gear wheels. into and .out of mesh with the other, said means comprising a screw-threzuled shaft and means for shifting the shaft longitudinally and rotating it relatively to said .and a motor for shifting the shaft longitudinally and rotating it relatively to said pinion.

ll). Ina starting mechanism, the combination with a pair of courting gear wheels. oi" means for shifting one of said gear wheels into and out oi mesh with the other, said means comprising a scrc\v-thrcaded shaft and a motor having a normally displaced armature for shifting theshai't longitu dinally and rotating it relatively to said pinion. I

11. In a starting mechanism, the combination with a pair of reacting gear wheels, of means for controlling their relative positions. said means comprising an electric motor having a longitudimilly shiftable armature. and an armature shaft having aportion inclined relatively to its axis or conclmg with one of said gear wheels.

In testimony whereof I affix my signature.

JOHN B08001 l\'lllili\Vik.lll). 

